CVE-2021-20278

MEDIUM

Kiali < 1.31.0 - Authentication Bypass via OpenID Implicit Flow

Title source: llm
STIX 2.1

Description

An authentication bypass vulnerability was found in Kiali in versions before 1.31.0 when the authentication strategy `OpenID` is used. When RBAC is enabled, Kiali assumes that some of the token validation is handled by the underlying cluster. When OpenID `implicit flow` is used with RBAC turned off, this token validation doesn't occur, and this allows a malicious user to bypass the authentication.

References (2)

Core 2
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1937171

Scores

CVSS v3 6.5
EPSS 0.0076
EPSS Percentile 50.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Details

CWE
CWE-290 CWE-287
Status published
Products (2)
kiali/kiali < 1.31.0
kiali/kiali 0 - 1.31.0Go
Published May 28, 2021
Tracked Since Feb 18, 2026